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(N0 Model.)

J. F. SIMMS & J. W. CODY.

' CHAIN SWIVEL.

No. 271,375. Patented Ja11 .30, 1883.

WITNESSES.

INVE NT OHS.

FIB-3.

John W. Cod

n4 PETtns. Pack-W. wnnin mn. at;

Uivirnn TATES I'ATENT FFICE.

JAMES F. SIMMS AND JOHN CODY, OF ATILEBOROUGH, MASS., ASSIGNORS OF ONE-THIRD TO FRANK FONTNEAU, OF SAME PLACE.

CHAlN-SWIVEL- SPECIFICATION forming part of Letters Patent No. 271,375, dated January 30, 1883.

Application filed November 27, 1882. (No model.)

.T 0 all whom it may concern Be it known that we, JAMES F. SrMMs and JOHN W. CODY, of Attleborough,in the county of Bristol and State of Massachusetts, have invented a new and useful Improvementin GhaiirSWivels; and we do hereby declare that the. following specification, taken in connection with the accompanying drawings,forming a part of the same, is a full, clear, and exact description thereof.

Our invention consists in providing one end of the bow with a plate adapted to lit into the top of the neck-member, in loosely pivoting the movable member of the bow upon said plate, and in. securing the bow to the neck without solder by swaging or burnishing the neck in upon the edge of said plate, as will hereinafter appear.

Referring to the drawings, Figure 1 represents in perspective and in side elevation the blank from which the bow preferably is made. Fig. 2 shows the blank bent into the form of a bow. Fig. 3 represents the swivel in partial section.

in making the blank shown in Fig.1 a strip of metal of the width and thickness that the bow A is intended to be is subjected to the action of dies, and a plate, a, is swaged on one of its ends, the contour and size of which is in accordance with the shape and size of the neck with which it is to be combined. The edge of this plate is preferably beveled, and it is indented by a notch, the rear wall, c of which is preferably beveled to an edge, as shown in Figs. 1 and 3. Upon the opposite end of the blank another plate, b, is swaged, of any preferred shape. The blank is also beveled at c and transversely notched at d. In forming the bow from the blank the plates at and b are bent nearly at right angles to the body A, as indicated by dotted lines in one of the views of Fig. l. The body is then bent into the form shown in Fig. 2, a portion of the bow entering the notch a and the plate b being located slightly below the plate a, so that when the bow is sawed apart at a point indicated by dotted lines to make the movable member B of the bow, the parts will come into proper relation, as shown in Fig. 3, when they are again adjusted.

The neck 0 is formed in any preferred manner into the desired shape, is closed atthe bottom, and provided with the usual ring, 0, as shown in Fig. 3. A spring, D, is then inserted, and the bow in two parts, Act and Bb,

is placed in the upper end of the neck. As hereinbefore stated, the edge of the plate a is preferably beveled and the bow is notched at d. The object of this is to allow the neck to be swaged or burnished in upon the edge of the plate, and thereby secure the parts together without solder. The parts having been conibined as above described, the upper end of the neck is burnished or turned inward, and the swivel is complete. 6

By an examination of Fig. 3 it will be seen that the movable member B b of the bow is loosely pivoted to the swivel, it taking bearing upon the rear wall, o of the notch a, at the angle formed between its part B and its plate 0 I), and being held up in position by the spring D, which presses on the plate I).

In swivels as usually constructed the rigid part of the bow is soldered tothe neck, and the neck has to be burred out toreceive the movable member, which is secured to the neck by a pivotal pin. Our improved swivel is not only stronger than one so constructed, because no solder is employed to connect the parts, but it is also less expensive, as the mov- 8o able member-of the bow is loosely pivoted, requiring no pin, and the top of the neck need not be burred out to accommodate said movable member.

What we claim,and desire to secure by Let- 8 ters Patent, is-

1. The improved swivel herein described, consisting of a bow, A, having a plate, a, adapted to tit into the neck of the swivel, a movable bow-member, B b, loosely pivoted to the plate a, as described, a neck-member secured to the plate a, and a spring for holding the movable member of the bow in normal position, substantially as set forth.

2. In a swivel, the combination of the bow- 5 member A, having a notch, d, and provided witha plate, a, having a beveled edge, and a notch, at, having a wall, a a movable bowmember, B b, loosely pivoted in the notch a Witnesses:

EDsoN SALISBURY JONES, HENRY J. STAPLEToN.

upon the wall a a neck-member burnished 10o 

